Brushless 1/8 Buggy

[Batfish]

She's not working on a bigger yard, but she wouldn't mind me buying a house with a bigger yard ;)
She's working on delivering our second daughter :)
The due date is May 5, 2005.

Just wanted to post a minor update about the buggy.

Things have been going well with the buggy and I think I have my solution for holding the batteries in. I got a 4ft piece of elbowed 1/8" aluminum from Home Depot and I'm going to cut a couple pieces out of it long enough to fit the chassis. I'll drill holes to allow me to secure it to the chassis with bolts, then secure them to each other with a threaded rod, kind of like a turnbuckle-type thing. I'll then slot the aluminum in different places to allow for velcro to hold the batteries onto the aluminum.
The weight I'm adding should bring the buggy to about 9-9.5 lbs with 16 cells. I'm hoping to cut enough out of the aluminum battery holders so that I'm adding as little weight as possible.

I'm keeping my updates going at rcpics.net:
http://www.rcpics.net/member/Batfish

One last question - I'm horrible with math, so I figure someone else can give me a hand :)
I'm running 15/46 now, what could I expect to see by way of speed increase if I go to 16/46?

Thanks.